Garmin 720C User Manual

■

Check that the power light is green, not flashing, and the lens cap 
is off. 

■

The projector may be in sleep mode. If the power light is orange, 
press the 

P

Power

 button to turn the projector on.

■

If the power was switched off and then on again, the projector 
may still be cooling down. Wait until the power light stops 
flashing and remains orange; then press the 

P

Power

 button 

again.

■

Make sure the 

Brightness

 setting on the Video menu is correct. 

See page 41 for more information. Try selecting the 

Reset All 

setting to return all setup menus to their default values. 

■

Press the 

A/V Mute 

button to make sure the picture has not been 

turned off temporarily. 

■

The attached computer may be in sleep mode or displaying a 
black screen saver. Try pressing a key on the computer.

No Signal

■

Make sure the cables are connected correctly, as described in 
Chapter 1 or Appendix A.

■

Try restarting your computer.

■

If you’ve connected a computer and one or more video sources, 
you may need to press the 

Source 

button (on the projector) or 

the 

Computer

 or 

S-Video/Video

 button (on the remote control) 

to select the correct source. Allow a few seconds for the projector 
to sync up after pressing the button.

720-730.book  Page 63  Thursday, October 30, 2003  11:32 AM